203 students signed up for the Stats course in Exercise 39. They used the software suggested by...
Question:
a) Should the professor spend the money for this software? Support your recommendation with an appropriate test.
b) Does this improvement seem to be practically significant?
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a H 0 The average score does not change following the use of software 105 H A The average score incr...View the full answer
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Related Book For 
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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